Collective flow in 2.76 and 5.02 A TeV Pb + Pb collisions
Wenbin Zhao (Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, 0000 0001 2256 9319, 100871, Beijing, China); Hao-jie Xu (Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, 0000 0001 2256 9319, 100871, Beijing, China); Huichao Song (Center for High Energy Physics, Peking University, 0000 0001 2256 9319, 100871, Beijing, China, Collaborative Innovation Center of Quantum Matter, 0000 0001 2256 9319, 100871, Beijing, China, Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, 0000 0001 2256 9319, 100871, Beijing, China)
In this paper, we study and predict flow observables in 2.76 and 5.02 A TeV Pb + Pb collisions, using the iEBE-VISHNU hybrid model with TRENTo and AMPT initial conditions and with different forms of the QGP transport coefficients. With properly chosen and tuned parameter sets, our model calculations can nicely describe various flow observables in 2.76 A TeV Pb + Pb collisions, as well as the measured flow harmonics of all charged hadrons in 5.02 A TeV Pb + Pb collisions. We also predict other flow observables, including vn(pT) of identified particles, event-by-event vn distributions, event-plane correlations, (normalized) symmetric cumulants, non-linear response coefficients and pT -dependent factorization ratios, in 5.02 A TeV Pb + Pb collisions. We find many of these observables to remain approximately the same values as the ones in 2.76 A TeV Pb + Pb collisions. Our theoretical studies and predictions could shed light to the experimental investigations in the near future.
